Tech Controllers STZ-120T User manual

Brand: Tech Controllers

Model: STZ-120T

Type: User manual

Tech Controllers STZ-120T is a device designed for precise control of three- and four-way mixing valves in heating and cooling systems. With its 90-degree rotation range and 120-second rotation time, it enables efficient and accurate regulation of fluid flow. The actuator can be manually operated using a pull-out knob and features LED indicators to display its status. It is compatible with various valve types, including ESBE, Afriso, Herz, Womix, Honeywell, and Wita, providing versatility in installation.

USER’S MANUAL

STZ-120T

EU DECLARATION OF CONFORMITY

Hereby, we declare under our sole responsibility that STZ-120T

manufactured by TECH STEROWNIKI, head-quartered in Wieprz Biała

Droga 31, 34-122 Wieprz, is compliant with Directive 2014/35/EU of

the European Parliament and of the Council of 26 February 2014 on

the harmonisation of the laws of Member States relating to the making

available on the market of electrical equipment designed for use within

certain voltage limits (EU OJ L 96, of 29.03.2014, p. 357), Directive

2014/30/EU of the European Parliament and of the Council of 26 February

2014 on the harmonisation of the laws of Member States relating to

electromagnetic compatibility (EU OJ L 96 of 29.03.2014, p.79), Directive

2009/125/EC establishing a framework for the setting of ecodesign

requirements for energy-related products as well as the regulation by

the MINISTRY OF ENTREPRENEURSHIP AND TECHNOLOGY of 24 June

2019 amending the regulation concerning the essential requirements

as regards the restriction of the use of certain hazardous substances in

electrical and electronic equipment, implementing provisions of Directive

(EU) 2017/2102 of the European Parliament and of the Council of 15

November 2017 amending Directive 2011/65/EU on the restriction

of the use of certain hazardous substances in electrical and electronic

equipment (OJ L 305, 21.11.2017, p. 8).

For compliance assessment, harmonized standards were used:

PN-EN IEC 60730-2-9:2019-06, PN-EN 60730-1:2016-10.

Wieprz, 10.03.2021

TECHNICAL DATA

Power supply 230V ± 10%/50Hz

Maximum power consumption 1,5W

Ambient temperature 50C ÷ 500C

90° rotation time 120sec.

The pictures and diagrams are for illustration purposes only.

The manufacturer reserves the right to introduce some hanges.

WARRANTY CARD

TECH company ensures to the Buyer proper operation of the device for the period of 24 months from the date of sale. The Guarantor

undertakes to repair the device free of charge if the defects occurred through the manufacturer’s fault. The device should be delivered to

its manufacturer. Principles of conduct in the case of a complaint are determined by the Act on specic terms and conditions of consumer

sale and amendments of the Civil Code (Journal of Laws of 5 September 2002).

CAUTION! THE TEMPERATURE SENSOR CANNOT BE IMMERSED IN ANY LIQUID (OIL ETC). THIS MAY RESULT IN DAMAGING THE

CONTROLLER AND LOSS OF WARRANTY! THE ACCEPTABLE RELATIVE HUMIDITY OF THE CONTROLLER’S ENVIRONMENT IS 5÷85% REL.H.

WITHOUT THE STEAM CONDENSATION EFFECT. THE DEVICE IS NOT INTENDED TO BE OPERATED BY CHILDREN.

The costs of unjusti able service call to a defect will be borne exclusively by the buyer. The unjusti able service call is de ned as a call

to remove damages not resulting from the Guarantor’s fault as well as a call considered unjusti able by the service after diagnosing the

device (e.g. damage of the equipment through the fault of the client or not subject to Warranty), or if the device defect occurred for reasons

lying beyond the device.

In order to execute the rights arising from this Warranty, the user is obliged, at his own cost and risk, deliver the device to the Guarantor

along with a correctly  lled-in warranty card (containing in particular the sale date, the seller’s signature and a description of the defect)

and sales proof (receipt, VAT invoice, etc.). The Warranty Card is the only basis for repair free of charge. The complaint repair time is 14

days.

When the Warranty Card is lost or damaged, the manufacturer does not issue a duplicate.

...................................... ..............................

seller’s stamp date of sale

SAFETY

Before using the device for the rst time the user should read the

following regulations carefully. Not obeying the rules included in

this manual may lead to personal injuries or controller damage. The

user’s manual should be stored in a safe place for further reference.

In order to avoid accidents and errors it should be ensured that

every person using the device has familiarized themselves with the

principle of operation as well as security functions of the controller.

If the device is to be sold or put in a di erent place, make sure that

the user’s manual is there with the device so that any potential user

has access to essential information about the device.

The manufacturer does not accept responsibility for any injuries or

damage resulting from negligence; therefore, users are obliged to

take the necessary safety measures listed in this manual to protect

their lives and property.

WARNING

• The device should be installed by a qualied electrician.

• Any use other than specied by the manufacturer is forbidden.

We are committed to protecting the environment. Manufacturing

electronic devices imposes an obligation of providing for

environmentally safe disposal of used electronic components and

devices. Hence, we have been entered into a register kept by

the Inspection For Environmental Protection. The crossed-out bin

symbol on a product means that the product may not be disposed

of to household waste containers. Recycling of wastes helps to

protect the environment. The user is obliged to transfer their used

equipment to a collection point where all electric and electronic

components.

The rotation range is 900 and the rotation time is 120s.

A 1.5 m connection cable is connected to the actuator.

The STZ-120T actuator is supplied together with an adapter for easy

installation on a rotary mixing valve.

The auxiliary switch (freely adjustable) is available as factory installed

equipment or as optional equipment. Thanks to our special solution,

after removing the knob under which the cam is located, setting the

auxiliary switch is easy and does not require disassembly or the use

of any tools.

How to install

WARNING

• The device should be installed by a qualied person.

• Read the diagrams below carefully before installing the actuators.

1. Installation scheme for the valves including ESBE, Afriso, Herz,

Womix and Honeywell.

2. Installation scheme for Wita valves.

1. Valve

2. Actuator

3a. for valves including ESBE, Afriso, Herz, Womix, Honeywell

3b. for Wita valves Wita

4. depending on the type of valve thread

• 4a. positioning screw and M6 nut

• 4b. positioning screw and M8 nut

5a. for Wita valves

5b/5c. for valves including ESBE, Afriso, Herz, Womix, Honeywell

6. Knob

Use

Thanks to a special coupling between the STZ-120T actuator and the

mixing valves, the set is characterized by exceptional stability and

precision of regulation.

The STZ-120 T actuator is compatible with the following valves:

• ESBE

• Afriso

• Herz

• Womix

• Honeywell

• Wita.

5 6

3a 3b 4a

4 5

4b 5a 5b 5c

3 2

blue black brown

5 6

Description

The STZ-120T actuator is intended for controlling three- and four-way

mixing valves. It is controlled with a 3-point signal. The actuator may be

controlled manually with the use of a pull-out knob.

knob

yellow control light 1

yellow control light 2

red control light

yellow control light 1 steady on the valve is opening

yellow control light 2 steady on the valve is closing

red control light ashing controller error

Tech Controllers STZ-120T User manual

Tech Controllers STZ-120T User manual

Tech Controllers STZ-120T User manual

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